Netgear FVM318 – Cable and DSL ProSafe Wireless VPN Security Firewall 참조 매뉴얼

Protecting Your Network

4-5

•

If the keyword “XXX” is specified, the URL <http://www.badstuff.com/xxx.html> is 
blocked, as is the newsgroup alt.pictures.xxx.

•

If the keyword “.com” is specified, only websites with other domain suffixes (such as .edu 
or .gov) can be viewed.

•

Enter the keyword “.” to block all Internet browsing access.

Up to 32 entries are supported in the Keyword list.

5.

To delete a keyword or domain, select it from the list, click Delete Keyword, then click Apply.

6.

To specify a Trusted User, enter that PC’s IP address in the Trusted User box and click Apply.

You may specify one Trusted User, which is a PC that will be exempt from blocking and 
logging. Since the Trusted User will be identified by an IP address, you should configure that 
PC with a fixed IP address.

Firewalls are used to regulate specific traffic passing through from one side of the firewall to the 
other. You can restrict outbound (LAN to WAN) traffic to what outside resources you want local 
users to be able to access. In addition to the kind of blocking of sites discussed above, you can 
block services like Telnet or Instant Messenger.

By default, the FVM318 regulates inbound and outbound traffic in these ways:

•

Inbound: Block all access from outside except responses to requests from the LAN side.

•

Outbound: Allow all access from the LAN side to the outside.

You may define exceptions to the default outbound settings by adding Block Services definitions 
to the Outbound Services table. In this way, you can block or allow access based on the service or 
application destination IP addresses, and time of day. You can also choose to log traffic that 
matches or does not match what you have defined.